If you finding a way to update your HTC One A9 (International) to latest Android 7.1.2 Nougat then you are in right place. We at True Android today going to share a way to update your HTC One A9 (International) to Android 7.1.2 Nougat. We will use Android 7.1.2 Nougat based LineageOS 14.1 custom firmware for this purpose. All thanks to developer who shared this LineageOS 14.1 ROM with us. Since this build is still under development, you should expect some bugs and FC here and there but overall it going to be a smooth experience. Lets learn how to update HTC One A9 (International) to Android 7.1.2 Nougat with LineageOS 14.1 custom ROM.

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Android 7.1.2 Nougat comes with various useful features including multi-window multitasking, better notification management, faster device with better battery optimization, more human emoji, improved security, instant app and much more. Top of all LineageOS custom ROM comes with various additional features that surely improve your using experience.

Warning!This tutorial is only for HTC One A9 (International). Don’t try this guide on any other Android device. Also, we (True Android Team) are not responsible for any damage caused due to the instruction given in this page. Try this at your own risk. However, it is very unlikely that your device will be damaged if you follow all the instructions as it is which are mentioned in procedure.

How to Install Android 7.1.2 Nougat based LineageOS 14.1 ROM on HTC One A9 (International)

Connect your device to PC using USB cable and then copy downloaded files to the SD card of your device. Important: Don’t extract any files.

Disconnect USB and then turn off your HTC One A9 (International).

Now, boot into recovery mode. To do so, press and hold Volume Down and Power button together to boot into HBOOT menu, from there select Recovery [use volume buttons to scroll and Power button to select]. Alternatively try this: Recovery Mode without Key Combination.

Perform a Nandroid backup of your existing ROM that you can restore later if this new ROM not work or you want to go back into your previous ROM. To perform a backup, select Backup and Restore, then on the next screen, select Backup again. Go back to main recovery menu after backup is complete.

Select install zip from sdcard, then select choose zip from sdcard (or /sdcard1 for external storage). Now, locate the LineageOS 14.1 Zip file that you copied earlier in Step 1 and select it by pressing Power button. Confirm installation by selecting Yes – Install _____.zip on the next screen. The ROM installation will begin.

Once the ROM installation process end, repeat the step 6 but choose the open_gapps-arm-7.1-micro-20161125.zip file instead of ROM zip to install the Google apps package.

When installation is completed, go back to the main recovery menu and select reboot system now to reboot your HTC One A9 (International)and boot up into Android 7.1.2 Nougat ROM LineageOS 14.1.

Returning to Previous ROM: To go back to your previous ROM, boot into recovery, select backup and restore then restore your previous ROM by selecting it from the list.

Tutorial For TWRP Recovery Users:

Connect your device to PC using USB cable and then copy downloaded files to the SD card of your device. Important: Don’t extract any files.

Disconnect USB and then turn off your HTC One A9 (International).

Now, boot into recovery mode. To do so, press and hold Volume Down and Power button together to boot into HBOOT menu, from there select Recovery [use volume buttons to scroll and Power button to select]. Alternatively try this: Recovery Mode without Key Combination.

Create a Backup using TWRP Backup Option.

Perform a Factory Reset (this will delete all apps and their settings and game progress). To do this, Tap on Wipe, then at the bottom of the screen do a Swipe on the ‘Swipe to factory reset‘ option.

Now its time to add zip file for flashing. Tap on Install, then browse to the location where you saved the files and tap on the LineageOS 14.1 Zip file. Then tap on Add More Zips, and add open_gapps-arm-7.1-micro-20161125.zip. Now at the bottom of the screen, do a swipe on the Swipe to confirm flash option to begin flashing.

When installation is completed, go back to the main recovery menu and tap on Reboot and then, tap on System to reboot your HTC One A9 (International)and boot up into Android 7.1.2 Nougat ROM LineageOS 14.1.

Returning to Previous ROM: To go back to your previous ROM, boot into recovery, select Backup then through Restore option, restore your previous ROM by selecting it from the list.

NOTICE!!!

We recently removed lot of download links because either files are DELETED by uploader or service discontinue issue. If you desperately need a file then use contact form to let us know. Please always mention the page URL where you unable to find the link!